EP2317658A1 - Dispositif et procédé d optimisation du réglage des paramètres d un émetteur - Google Patents

Dispositif et procédé d optimisation du réglage des paramètres d un émetteur Download PDF

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Publication number
EP2317658A1
EP2317658A1 EP09811038A EP09811038A EP2317658A1 EP 2317658 A1 EP2317658 A1 EP 2317658A1 EP 09811038 A EP09811038 A EP 09811038A EP 09811038 A EP09811038 A EP 09811038A EP 2317658 A1 EP2317658 A1 EP 2317658A1
Authority
EP
European Patent Office
Prior art keywords
error signal
adjustment
unit
step length
transmitter parameter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09811038A
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German (de)
English (en)
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EP2317658B1 (fr
EP2317658A4 (fr
Inventor
Qi Zhang
Xiao Peng
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ZTE Corp
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ZTE Corp
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Publication of EP2317658A1 publication Critical patent/EP2317658A1/fr
Publication of EP2317658A4 publication Critical patent/EP2317658A4/fr
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Publication of EP2317658B1 publication Critical patent/EP2317658B1/fr
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/58—Compensation for non-linear transmitter output
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/14—Monitoring arrangements

Definitions

  • the present invention relates to the technical field of signal transmission of digital communication systems, specifically to a device and a method for optimally adjusting transmitter parameters.
  • transmitter parameters including an eye diagram crossing point of a transmitter, a driving amplitude, a Von (Voltage-On) level of an EA (electro absorption) modulated laser and the like, are important factors influencing the performance of the system.
  • the eye diagram crossing point of a transmitter if the eye diagram crossing point of the transmitter is properly lowered, an average power of signals will be reduced as well.
  • the power of a code "1" signal with a lower eye diagram crossing point is higher than that of a code "1" signal with a higher eye diagram crossing point, that is, the code "1" signal with the lower eye diagram crossing point has a better noise resistant performance and is superior in signal-to-noise ratio (SNR for short) tolerance and receiving sensitivity.
  • SNR signal-to-noise ratio
  • the driving amplitude is too large, the signal outputted from a drive will be distorted and degraded, and the transmission performance of the system will be consequentially degraded.
  • the present invention provides a device and a method for optimally adjusting transmitter parameters to solve at least one of the problems above.
  • a device for optimally adjusting transmitter parameters is provided according to one aspect of the present invention.
  • the device for optimally adjusting transmitter parameters according to the present invention is used to optimize transmission performance of a digital signal system, and comprises an error signal analyzing unit and a step length adjustment unit which are connected in signal with each other.
  • the error signal analyzing unit is used for analyzing an error signal and making a determination to carry out a transmitter parameter adjustment operation; and the step length adjustment unit is used for calculating and determining an adjustment direction and an adjustment step length of the transmitter parameter according to the analytical result of the error signal analyzing unit.
  • the device may further comprise an error signal obtaining unit used for obtaining system transmission performance representation information as an error signal and transmitting the obtained error signal to the error signal analyzing unit.
  • an error signal obtaining unit used for obtaining system transmission performance representation information as an error signal and transmitting the obtained error signal to the error signal analyzing unit.
  • the error signal obtaining unit may be a forward error correction unit used for outputting error correction information as the error signal to detect and correct an error transmission code.
  • the device may further comprise a transmitter parameter adjusting unit used for carrying out an automatic or manual adjustment of the transmitter parameter according to the adjustment direction and the adjustment step length transmitted from the step length adjustment unit.
  • a transmitter parameter adjusting unit used for carrying out an automatic or manual adjustment of the transmitter parameter according to the adjustment direction and the adjustment step length transmitted from the step length adjustment unit.
  • a method for optimally adjusting transmitter parameters is provided.
  • the method for optimally adjusting transmitter parameters comprises the following steps:
  • the operation of the error signal analyzing unit may specifically comprise:
  • the operation of the step length adjustment unit may specifically comprise:
  • Step B may specifically comprise the following steps:
  • Step B2 may specifically comprise the following steps:
  • the method may further comprise the following steps:
  • an error feedback mechanism is introduced and the operations of adjustment and feedback are alternately carried out, therefore, the problem that no solution has been provided for transmitter parameter optimization is solved; the transmitter parameter is optimized manually or automatically, so that the transmission performance of a digital communication system is guaranteed to be optimal, the setting precision of the transmitter parameter is improved, and performance indexes including system SNR and reception sensitivity are also improved.
  • transmitter parameters can be optimized manually or automatically, so that the transmission performance of a digital communication system is guaranteed to be optimal.
  • one embodiment of the present invention provides a solution for optimally adjusting transmitter parameters, which is based on the following processing principle of introducing an error feedback mechanism and alternatively conducting operations of adjustment and feedback to optimize the transmission performance of a digital communication system.
  • transmitter parameters are optimized automatically or manually, and the transmission performance of a digital communication system is guaranteed to be optimal.
  • Fig.1 is a schematic block diagram illustrating the structure of a device for optimally adjusting transmitter parameters according to one embodiment of the present invention.
  • the device for optimally adjusting transmitter parameters according to one embodiment of the present invention comprises the following units:
  • Fig.3 is a schematic diagram illustrating the flow of a method for optimally adjusting transmitter parameters according to one embodiment of the present invention. As shown in Fig.3 , the method for automatically optimizing and adjusting transmitter parameters according to one embodiment of the present invention comprises the following steps:
  • Step S304 after the transmitter parameter adjustment to re-obtain an adjusted error signal and start a next transmitter parameter adjusting process, and ending the adjustment operation when the bit error rate of the error signal is not greater than a set value or no adjustment is needed.
  • the device and the method for automatically and optimally adjusting transmitter parameters in a digital communication system of the present invention are further illustrated below with reference to a specific embodiment, and the automatic optimization process is described here still by taking the eye diagram crossing point of a transmitter as an example, as shown in Fig.2 .
  • the device comprises three parts which are a transmitting device 210, a receiving device 220 and a microprocessor 230.
  • the microprocessor 230 is used for inquiring error correction information from a forward error correcting unit 224, conducting analysis and calculation, and controlling and adjusting an eye diagram crossing point of the transmitting device 210.
  • the receiving device 220 comprises a photo detector 221, a transimpedance amplifier 222, a linear channel and data recovering unit 223 with automatic gain control function and the forward error correction unit 224.
  • the transmitting device 210 comprises a digital-to-analog conversion unit 212 and an eye diagram crossing point adjusting unit 211, and is used for realizing an adjustment on the eye diagram crossing point of the transmitting device 210 and is equivalent to the transmitter parameter adjusting unit 140 shown in Fig.1 .
  • the units above respectively function as follows:
  • the optical signal outputted from the transmitting device 210 is transmitted and inputted to the receiving device 220, the inputted optical signal is converted into a weak electric signal via the photo detector 221, then pre-amplified by the transimpedance amplifier 222, and amplified, filtered and recovered in data by the linear channel and data recovering unit 223, and finally inputted to the forward error correction unit 224 to detect and correct error codes in transmission.
  • the error correction information outputted by the forward error correction unit 224 is subjected to a microprocessor 230 to control the eye diagram crossing point adjusting unit 211 of the transmitting device 210.
  • the error correction information outputted from the forward error correction unit 224 serves as the error information to conduct an optimal adjustment on the eye diagram crossing point, thus, the forward error correction unit 224 is equivalent to the error signal obtaining unit 110 shown in Fig.1 .
  • the microprocessor 230 is used for analyzing and calculating the error correction information outputted from the forward error correction unit 224 and outputting eye diagram crossing point adjustment information to the eye diagram crossing point adjusting unit 211 of the transmitting device 210, thus, the microprocessor 230 is equivalent to the error signal analyzing unit 120 and the step length adjustment unit 130 shown in Fig.1 .
  • the system signal error rate is the lowest and the transmission performance is optimal when the sum E of the numbers of corrected "1" and corrected "0" in the error correction information is minimum, thus, the sum E can be taken as one of the standards for determining whether an eye diagram crossing point adjustment is needed.
  • a computer-readable medium is also provided, on which computer-executable instructions are stored; when the instructions are executed by a computer or processor, the computer or processor is instructed to execute the processing of the steps shown in Fig.3 and preferably one or more embodiments above.
  • the transmitter parameter is optimized automatically or manually, and consequently, the optimal transmission performance of a digital communication system is guaranteed, and the setting precision of the transmitter parameter as well as performance indexes including system SNR and reception sensitivity are improved.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Transmitters (AREA)
EP09811038.0A 2008-09-04 2009-09-01 Dispositif et procédé d optimisation du réglage des paramètres d un émetteur Not-in-force EP2317658B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2008101418531A CN101355404B (zh) 2008-09-04 2008-09-04 一种优化调整发射机参数的装置和方法
PCT/CN2009/073669 WO2010025663A1 (fr) 2008-09-04 2009-09-01 Dispositif et procédé d’optimisation du réglage des paramètres d’un émetteur

Publications (3)

Publication Number Publication Date
EP2317658A1 true EP2317658A1 (fr) 2011-05-04
EP2317658A4 EP2317658A4 (fr) 2012-01-04
EP2317658B1 EP2317658B1 (fr) 2014-11-26

Family

ID=40308018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09811038.0A Not-in-force EP2317658B1 (fr) 2008-09-04 2009-09-01 Dispositif et procédé d optimisation du réglage des paramètres d un émetteur

Country Status (7)

Country Link
US (1) US8347166B2 (fr)
EP (1) EP2317658B1 (fr)
JP (1) JP5254448B2 (fr)
KR (1) KR101228915B1 (fr)
CN (1) CN101355404B (fr)
PT (1) PT2317658E (fr)
WO (1) WO2010025663A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101355404B (zh) 2008-09-04 2011-04-06 中兴通讯股份有限公司 一种优化调整发射机参数的装置和方法
CN102215063B (zh) * 2011-05-31 2014-03-12 索尔思光电（成都）有限公司 基于eml激光器的长距xfp模块核心参数调试方法
JP2016105566A (ja) * 2014-12-01 2016-06-09 富士通株式会社 伝送装置
CN107515806A (zh) * 2017-08-29 2017-12-26 郑州云海信息技术有限公司 一种sas信号参数在线调试的方法与装置
CN108279663B (zh) * 2018-01-24 2019-12-20 广汽丰田汽车有限公司 车辆错误信号的控制系统及控制方法、存储介质
CN108494480B (zh) * 2018-03-31 2019-10-25 杨爱英 一种检测高速光通信发射设备的装置和方法
US11923896B2 (en) * 2021-03-24 2024-03-05 Tektronix, Inc. Optical transceiver tuning using machine learning
US11923895B2 (en) 2021-03-24 2024-03-05 Tektronix, Inc. Optical transmitter tuning using machine learning and reference parameters
US11940889B2 (en) 2021-08-12 2024-03-26 Tektronix, Inc. Combined TDECQ measurement and transmitter tuning using machine learning
US11907090B2 (en) 2021-08-12 2024-02-20 Tektronix, Inc. Machine learning for taps to accelerate TDECQ and other measurements
WO2023108486A1 (fr) * 2021-12-15 2023-06-22 中国科学院深圳先进技术研究院 Procédé de détermination précise et rapide de domaine de valeur de paramètre de configuration d'un système d'analyse de mégadonnées
CN114416193A (zh) * 2021-12-15 2022-04-29 中国科学院深圳先进技术研究院 一种准确快速确定大数据分析系统的配置参数值域的方法

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US20070066242A1 (en) * 2005-09-20 2007-03-22 Samsung Electronics Co., Ltd. System and method for allocating MCS level in a broadband wireless access communication system
US20070141995A1 (en) * 2005-12-15 2007-06-21 Samsung Electronics Co., Ltd. Method for controlling interference in a wireless mobile communication system
US20080002762A1 (en) * 2006-06-30 2008-01-03 Cranford Hayden C A Method of Generating an Eye Diagram of Integrated Circuit Transmitted Signals

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US20070066242A1 (en) * 2005-09-20 2007-03-22 Samsung Electronics Co., Ltd. System and method for allocating MCS level in a broadband wireless access communication system
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Also Published As

Publication number Publication date
JP5254448B2 (ja) 2013-08-07
CN101355404B (zh) 2011-04-06
WO2010025663A1 (fr) 2010-03-11
US20110161738A1 (en) 2011-06-30
EP2317658B1 (fr) 2014-11-26
CN101355404A (zh) 2009-01-28
KR20110039387A (ko) 2011-04-15
JP2012502518A (ja) 2012-01-26
PT2317658E (pt) 2014-12-09
KR101228915B1 (ko) 2013-02-01
EP2317658A4 (fr) 2012-01-04
US8347166B2 (en) 2013-01-01

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